Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4903
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
WN 4903 · OAK → LAX
departs 10:05 AM PT · arrives 11:30 AM PT
Forecast issued Wed 10:00 PM ET · 9h after departure
Watch this flight
Other days
Wed 9/30
Today 26%
Sat 10/3 20%
Mon 10/5 10%
Tue 10/6 10%
Wed 10/7 10%
Odds over time
Arrive at LAX more than 15 minutes late?
15%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
15%
Leave 15+ late
13%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at LAX more than 15 minutes late?
Calm-weather odds: 15% · changed +0 pts in 24h
+0 pts
15%
Yes 15%
No 85%
Leave OAK more than 15 minutes late?
Calm-weather odds: 13% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Arrive at LAX more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAX?
On time or early
84%
15–30 min late
10%
30 min–1 hour late
3%
1–2 hours late
2%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
LAX is prone to delays
↑
Arrivals into LAX at that hour are often late
↑
OAK is prone to delays
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at OAK
Weather at each end
OAK (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
LAX (destination)
Gusts 13 kt Ceiling 1,000 ft Visibility 7 mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.